[Bug 46956] New: ReplaceFile cannot replace the current executable

https://bugs.winehq.org/show_bug.cgi?id=46956

Bug ID: 46956
           Summary: ReplaceFile cannot replace the current executable
           Product: Wine
           Version: 1.6.2
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: kernel32
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 64085
  --> https://bugs.winehq.org/attachment.cgi?id=64085
A simple VS2017 console project that you can compile to test this.

The ReplaceFile API can be used to update the currently running exe file; this
does not work with WINE.

This bug prevents the Warframe launcher from working properly.

A simple program that demonstrates this is:

#include <windows.h>
#include <tchar.h>

int main(int argc, const char* argv[])
{
    TCHAR exePath[MAX_PATH];
    TCHAR tmpPath[MAX_PATH];

GetModuleFileName(GetModuleHandle(NULL), exePath, MAX_PATH);
    _tcscpy_s(tmpPath, MAX_PATH, exePath);
    _tcscat_s(tmpPath, MAX_PATH, TEXT(".tmp"));

if(!CopyFile(exePath, tmpPath, FALSE))
    {
        _tprintf(TEXT("CopyFile(%s, %s, FALSE) failed [0x%08X]\n"), exePath,
tmpPath, GetLastError());
        return(1);
    }

/* this has worked from at least as far back as WinXP and continues to work
on Win10 */
    if(!ReplaceFile(exePath, tmpPath, NULL, 0, NULL, NULL))
    {
        _tprintf(TEXT("ReplaceFile(%s, %s, NULL, 0, NULL, NULL) failed
[0x%08X]\n"), exePath, tmpPath, GetLastError());
        return(1);
    }

/* A proper test would check that the file was actually updated but this is
sufficient to demonstrate the bug */
    _tprintf(TEXT("No errors!\n"));

return(0);
}

Under WINE this prints:

ReplaceFile(Z:\home\glen\WineReplaceFile.exe,
Z:\home\glen\WineReplaceFile.exe.tmp, NULL, 0, NULL, NULL) failed [0x00000497]

Under real WinXP to Win10 this prints:

No errors!